modelMill_L4
Aerosol component | box module to capsule mill components
Extends from ClaRa.Basics.Icons.Mill (Icon for mill models).
Information
For detailed model documentation please consult the html-documentation shipped with ClaRa.
Authorship and Copyright Statement for original (initial) Contribution
Author:
DYNCAP/DYNSTART development team, Copyright © 2011-2024.References:
For references please consult the html-documentation shipped with ClaRa.
Remarks:
This component was developed by ClaRa development team under the 3-clause BSD License.
Acknowledgements:ClaRa originated from the collaborative research projects DYNCAP and DYNSTART. Both research projects were supported by the German Federal Ministry for Economic Affairs and Energy (FKZ 03ET2009 and FKZ 03ET7060).
CLA:
The author(s) have agreed to ClaRa CLA, version 1.0. See https://claralib.com/pdf/CLA.pdf
By agreeing to ClaRa CLA, version 1.0 the author has granted the ClaRa development team a permanent right to use and modify his initial contribution as well as to publish it or its modified versions under the 3-clause BSD License.
The ClaRa development team consists of the following partners:
TLK-Thermo GmbH (Braunschweig, Germany)
XRG Simulation GmbH (Hamburg, Germany).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| General › Fundamental Definitions | |||
| TILMedia.Gas.Types.BaseGas | gas | simCenter.flueGasModel | Medium model |
| ClaRa.Basics.Media.FuelTypes.BaseFuel | fuelModel | simCenter.fuelModel1 | Coal elemental composition used for combustion |
| Volumes.Fundamentals.Records.FuelClassification_base | classification | Volumes.Fundamentals.Records.FuelClassification_example_21classes() | Classification record |
| ClaRa.Basics.Units.MassFraction[classification.N_class - 1] | classFraction | ((1/classification.N_class)*ones(classification.N_class - 1)) | Particle class mass fraction |
| General › Global nominal values | |||
| ClaRa.Basics.Units.MassFlowRate | m_flow_fuel_nom | 15.72 | nominal fuel mass flow rate |
| ClaRa.Basics.Units.MassFlowRate | m_flow_gas_nom | 21.68 | nominal gas mass flow rate |
| ClaRa.Basics.Units.Pressure | Delta_p_mill_nom | 7500 | Nominal total Pressure Loss of Pulverizer |
| ClaRa.Basics.Units.Power | P_grinding_nom | 460e3 | Nominal electrical Power |
| ClaRa.Basics.Units.Mass | mass_mill | 116e3 | Total mass of mill construction |
| Grinder › Geometry | |||
| ClaRa.Basics.Units.Length | radius_table | 0.5*(2.44 - 0.4) | outer radius of the grinding table; center table to center roll! |
| ClaRa.Basics.Units.Length | radius_chute | 0.5*0.817 | radius of recirculation tube of classifier |
| Grinder › Initialization | |||
| ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1] | xi_grinder_start | zeros(fuelModel.N_c - 1) | initial fuel composition |
| ClaRa.Basics.Units.MassFraction[classification.N_class - 1] | classFraction_grinder_start | (1/classification.N_class)*ones(classification.N_class - 1) | start value for total class fraction of ALL inlets |
| ClaRa.Basics.Units.Temperature | T_grinder_start | simCenter.T_amb_start | initial temperature in fuel controll volume |
| Real | recirculation_rate_grinder_start | 15 | initial m_flow_out/m_flow_in1 kg/kg |
| Dryer › Initialization | |||
| ClaRa.Basics.Units.Mass | mass_content_start | 100 | Initial mass in drying zone |
| ClaRa.Basics.Units.MassFlowRate | m_flow_H2O_evap_start | 1.5 | initianl mass flow rate of evaporated coal H2O |
| ClaRa.Basics.Units.Temperature | T_dryer_start | simCenter.T_amb_start | initial temperature in fuel controll volume |
| ClaRa.Basics.Units.Pressure | p_dryer_start | simCenter.p_amb_start | Initial value for air pressure |
| ClaRa.Basics.Units.MassFraction[gas.nc - 1] | xi_dryer_gas_in_start | zeros(gas.nc - 1) | initial gas composition |
| ClaRa.Basics.Units.MassFraction[gas.nc - 1] | xi_dryer_gas_out_start | zeros(gas.nc - 1) | initial gas composition |
| Transport › Geometry | |||
| ClaRa.Basics.Units.Length | height_transport | 4.6 | length of transport volume |
| ClaRa.Basics.Units.Area | A_cross_transport | 6.43 | cross section of transport volume |
| Transport › Initialization | |||
| ClaRa.Basics.Units.Mass | mass_transport_start | 24 | total initial fuel mass |
| ClaRa.Basics.Units.MassFraction[classification.N_class - 1] | classFraction_transport_start | (1/classification.N_class)*ones(classification.N_class - 1) | start value for total class fraction in control volume |
| ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1] | xi_transport_fuel_start | zeros(fuelModel.N_c - 1) | initial fuel composition |
| Modelica.Units.SI.Pressure | p_transport_start | simCenter.p_amb_start | initial value of gas sytsem pressure |
| ClaRa.Basics.Units.Temperature | T_transport_start | 273.15 + 100 | initial temperature |
| ClaRa.Basics.Units.MassFraction[gas.nc - 1] | xi_transport_gas_start | zeros(gas.nc - 1) | initial gas composition |
| Classifier › Geometry | |||
| ClaRa.Basics.Units.Length | radius_classifier_outer | 0.5*3.33 | outer radius of classifier (inlet) |
| ClaRa.Basics.Units.Length | radius_classifier_inner | 0.5*0.817 | inner radius of classifier (outlet) |
| ClaRa.Basics.Units.Length | height_classifier | 2 | height of classifier; considered as CONSTANT against radius |
| Classifier › Initialization | |||
| ClaRa.Basics.Units.Mass | mass_classifier_start | 24 | total initial fuel mass |
| ClaRa.Basics.Units.MassFraction[classification.N_class - 1] | classFraction_classifier_start | (1/classification.N_class)*ones(classification.N_class - 1) | intitial value for total class fraction in control volume |
| ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1] | xi_classifier_fuel_start | zeros(fuelModel.N_c - 1) | initial fuel composition |
| Modelica.Units.SI.Pressure | p_classifier_start | simCenter.p_amb_start | initial value of gas sytsem pressure |
| ClaRa.Basics.Units.Temperature | T_classifier_start | 273.15 + 100 | initial temperature |
| ClaRa.Basics.Units.MassFraction[gas.nc - 1] | xi_classifier_gas_start | zeros(gas.nc - 1) | initial gas composition |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.GasPortIn | gasInlet | ||
| ClaRa.Basics.Interfaces.GasPortOut | gasOutlet | ||
| ClaRa.Basics.Interfaces.Fuel_inlet | fuelInlet | ||
| ClaRa.Basics.Interfaces.Fuel_outlet | fuelOutlet | ||
| Modelica.Blocks.Interfaces.RealInput | inputGrindingPressure | ||
| Modelica.Blocks.Interfaces.RealInput | inputTableSpeed | ||
| Modelica.Blocks.Interfaces.RealInput | inputClassifier | either inlet vane angle or ratation speed |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.SimCenter | simCenter | ||
| Adapters.FuelAerosolDistributor | fuelAerosolDistributor | ||
| Volumes.Dryer | dryer | ||
| Volumes.GrinderRingRoller | grinderRingRoller | ||
| Volumes.FlowClassifier | flowClassifier | ||
| Volumes.CentrifugalClassifier | centrifugalClassifier | ||
| Volumes.FuelJoin_distributed | fuelJoin_distributed | ||
| Adapters.AerosolFuelConcentrator | aerosolFuelConcentrator | ||
| Summary | summary |
Contents
| Name | Description |
|---|---|
| Breakage | |
| Selection | |
| Transport | |
| Drying | |
 PressureLoss_dryer | |
| Classifying_flow | |
| PressureLoss_transport | |
| Classifying_centrifugal | |
| PressureLoss_classifier | |
 Outline | |
 Summary |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.